|Press release_Redhouse Chelsea Interchange project scoops major award_approved||32.5 KB||Download|
|Preview||AECOM showcased its design expertise on the Redhouse Chelsea Interchange and Arterial Roads project in Port Elizabeth||6.8 MB||Download|
|Preview||AECOM was appointed for the design, management and supervision of the Redhouse Chelsea Interchange and Arterial Roads project||10.29 MB||Download|
|Preview||An aerial view of the Redhouse Chelsea Interchange and Arterial Roads project||9.17 MB||Download|
|Preview||The road network underpins the Nelson Mandela Bay Municipality’s long-term goal to expand the western areas||4.34 MB||Download|
The road network underpins the Nelson Mandela Bay Municipality’s (NMBM) long-term goal to expand the western areas to meet the burgeoning demand for residential and commercial growth in the greater Port Elizabeth area.
The Redhouse Chelsea Interchange and Arterial Roads project was fast-tracked by the development of the 92 000 m2 regional Bay West Mall, completed in 2015. With the proposed interchange on the N2 offering direct access to the area, the commercial development became significantly more viable. As a result, the Bay West City special purpose vehicle was established to implement the project.
“AECOM was appointed for the design, management and supervision of the project, which included management of an extensive environmental approval process, as the site is situated in an extremely sensitive environmental biosphere with a number of plant species on the national Red List. This is a comprehensive assessment of all South African indigenous plants,” Franclyn Samuel, Associate Civil Engineer (Civil Infrastructure), Port Elizabeth Office Lead, says.
Hence the road network went though many design iterations before an agreement was reached with the local authorities. “This was the main driver behind the extended design process, as the solution had to have the least invasive impact upon the natural habitat,” Samuel adds.
The final road layout consisted of a new interchange on the N2, with two bridges and 4 km of ramps; the Cyclopia Bridge, extending over an environmentally-sensitive area; two river bridges, extending over the upper Baakens River; a three-barrel culvert servicing an existing watercourse and the outfalls from three major detention ponds; and 6 km of arterial roads, as well as intersections and services.
The project included the provision of several bulk services such as water, sewerage and telecommunications for the Bay West City precinct, and street lighting for all roads, including a portion of the N2.
Work on the project commenced on 6 January 2014, with Basil Read appointed as the principal contractor. The contract comprised two major milestones:
Due to a delay in the start of construction, the contractor proposed that precast members be used for the bridges. The main beams for the N2 bridges, weighing up to 70 tonnes, were manufactured in Gauteng and transported to site. The remainder of the precast members were produced on-site. Phases 1 and 2 were ultimately completed on time and Phase 3 completed ahead of schedule.
AECOM has over a century of experience managing and delivering highway and road projects for all levels of government and private industry globally. It has extensive skills in construction and construction management, transportation planning, design programme management and asset support services, in addition to specialised project-delivery methods such as public-private partnerships and joint ventures.
Notes to the editor
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